Kitchen knife



FIG. 1 is a front elevational view of a kitchen knife showing my new design, the rear elevational view of a kitchen knife is a mirror image of the front elevational view;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is an end view of a kitchen knife taken from the right in FIG. 1; and,

FIG. 5 is an end view a kitchen knife taken from the left in FIG. 1. 

The ornamental design for a kitchen knife, as shown and described. 